9.下列关于化合物的叙述正确的是 A.淀粉是植物细胞壁的主要成分它的单体是�萄糖b.dna是一切生物的遗传物质它的单体是脱氧核糖核苷酸 Template




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tomski9.下列关于化合物的叙述正确的是 a.淀粉是植物细胞壁的主要成分它的单体是�萄糖b.dna是一切生物的遗传物质它的单体是脱氧核糖核苷酸 coloring